I also posted this in a nice community with tips and ideas for your home:
hip_domestics Up until recently, I've had thick limescale on my bathroom taps. I had tried most of the supermarket cleaners and they merely scratched the surface. So a few days ago, I downloaded a cool app on to my iPod which has loads of "natural" and "traditional" tips in it. I tried one of them on my taps, and I am amazed at the results. Of course I knew lemons were a good natural cleaner, but I'd never actually tried it before. So, if you haven't already given it a go, try this:
Cut a lemon in half and rub the limescale. It comes up all shiny and smells gorgeous!!
Job done!! Problem solved... and naturally too!! :)